As 62040.1.2-2003 Uninterruptible Power Systems (UPS) - General and Safety Requirements For UPS Used in Restr
As 62040.1.2-2003 Uninterruptible Power Systems (UPS) - General and Safety Requirements For UPS Used in Restr
As 62040.1.2-2003 Uninterruptible Power Systems (UPS) - General and Safety Requirements For UPS Used in Restr
2—2003
IEC 62040-1-2:2002
IEC 62040-1-2:2002/Corr.1:2002
AS 62040.1.2
Australian Standard™
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Australian Standard™
This is a free 7 page sample. Access the full version at http://infostore.saiglobal.com.
COPYRIGHT
© Standards Australia International
All rights are reserved. No part of this work may be reproduced or copied in any form or by any
means, electronic or mechanical, including photocopying, without the written permission of the
publisher.
Published by Standards Australia International Ltd
GPO Box 5420, Sydney, NSW 2001, Australia
ISBN 0 7337 5477 5
ii
PREFACE
This Standard was prepared by the Standards Australia Committee EL-027, Power Electronics.
The objective of this Standard is to provide designers, manufacturers, owners and operators
with general and safety requirements for Uninterruptible Power Systems (UPS) with a low
voltage a.c. output intended to be installed in areas with restricted access.
This Standard is identical with, and has been reproduced from, IEC 62040-1-2:2002,
Uninterruptible power systems (UPS), Part 1-2: General and safety requirements for UPS used
in restricted access locations including Corrigendum 1 (December 2002). This Standard is to be
read in conjunction with AS/NZS 60950.1 Information technology equipment—Safety, Part 1:
General requirements.
To assist users of this Standard, the definitions for insulation classes of UPS and connection to
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the supply from AS/NZS 60950.1 have been added as notes to clauses 3.4 and 3.5 respectively.
This Standard is part of a series, which consists of the following:
AS
62040 Uninterruptible power systems (UPS)
62040.1.1 Part 1.1: General and safety requirements for UPS used in operator access areas
62040.1.2 Part 1.2: General and safety requirements for UPS used in restricted access
locations (this Standard)
62040.2 Part 2: Electromagnetic compatibility (EMC) requirements
62040.3 Part 3: Method of specifying the performance and test requirements
The terms ‘normative’ and ‘informative’ are used to define the application of the annex to
which they apply. A normative annex is an integral part of a standard, whereas an informative
annex is only for information and guidance.
As this Standard is reproduced from an International Standard, the following applies:
(a) Its number does not appear on each page of text and its identity is shown only on the
cover and title page.
(b) In the source text ‘this international standard’ should read ‘this Australian Standard’.
(c) A full point should be substituted for a comma when referring to a decimal marker.
iii
CONTENTS
Page
Page
8 Electrical requirements and simulated abnormal conditions ............................................ 25
8.1 General ................................................................................................................. 25
8.2 Electric strength .................................................................................................... 26
8.3 Abnormal operating and fault conditions ................................................................ 26
Annexes ............................................................................................................................... 27
Annex H (informative) Guidance on protection against ingress of water and foreign
objects .................................................................................................................. 28
Annex L (normative) Backfeed protection test ....................................................................... 30
Annex M (normative) Examples of reference load conditions ................................................ 32
Annex N (normative) Ventilation of battery compartments ..................................................... 36
Annex P (normative) Minimum and maximum cross-sections of copper conductors
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STANDARDS AUSTRALIA
Australian Standard
1.1 Scope
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This standard applies to electronic uninterruptible power systems with an electrical energy
storage device in the d.c. link. It is to be used with IEC 60950-1 which is referred to in this
standard as “RD”.
When any item is referred to by the phrase “The definitions or the provisions of item/RD
apply”, this phrase is intended to mean that the definitions or provisions in that item of
IEC 60950-1 apply, except any which are clearly inapplicable to uninterruptible power
systems. National requirements additional to those in IEC 60950-1 apply and are found as
notes under relevant clauses of the RD.
The primary function of the UPS covered by this standard is to ensure continuity of an
alternating power source. The UPS may also serve to improve the quality of the power source
by keeping it within specified characteristics.
This standard is applicable to UPS which are movable, stationary, fixed or for building-in, for
use on low-voltage distribution systems and intended to be installed in restricted access
locations. It specifies requirements to ensure safety for the service person.
This standard is intended to ensure the safety of installed UPS, both as a single UPS unit or
as a system of interconnected UPS units, subject to installing, operating and maintaining the
UPS in the manner prescribed by the manufacturer.
This standard does not cover d.c. supplied electronic ballasts (IEC 60924 and IEC 60925) and
UPS based on rotating machines.
The relevant general and safety requirements for UPS intended to be installed in operator
access areas are given in IEC 62040-1-1; electromagnetic compatibility (EMC) requirements
and definitions are given in IEC 62040-2.
Even if this standard does not cover all types of UPS, it may be taken as a guide for such
equipment. Requirements additional to those specified in this standard may be necessary for
specific applications, for example:
– UPS intended for operation while exposed, for example, to extremes of temperature; to
excessive dust, moisture, or vibration; to flammable gases; to corrosive or explosive
atmospheres;
– electromedical applications with the UPS located within 1,5 m from the patient contact
area;